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FIREBRICK
HIGH AlUMINUM FIREBRICKS |
SPECS
. |
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EPI 45 |
EPI 60 |
EPI 60X |
EPI 70 |
EPI 80 |
EPI 85 |
Al2O3 (%)min |
48 |
61 |
60 |
70 |
81 |
85 |
SiO2 (%) max. |
-- |
33 |
33 |
26 |
15 |
11 |
Fe2O3 (%) max. |
1.9 |
1.8 |
1.8 |
1.5 |
1.3 |
1.2 |
TiO2 (%) max. |
0.7 |
0.7 |
0.7 |
0.7 |
0.7 |
0.7 |
CaO (%) max. |
0.7 |
0.5 |
0.5 |
0.3 |
0.3 |
0.3 |
MaO (%) max. |
-- |
0.3 |
0.3 |
0.2 |
0.1 |
0.1 |
NA2O+K2O(%) max. |
-- |
0.5 |
0.5 |
0.3 |
0.3 |
0.2 |
Bulk Density(g/cm3). |
2.20 |
2.40 |
2.30 |
2.60 |
2.75 |
2.83 |
Apparent porosity(%) |
20 |
20 |
20 |
18 |
18 |
18 |
Cold crushing
strength(Mpa ) |
30 |
60 |
45 |
60 |
70 |
70 |
Linear Change after
Heating(1350℃*2H) |
-0.3% |
0% |
0% |
-0.3% |
-0.3% |
-0.3% |
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